120=4-5T: length :90cm : Bust : 64cm : (Age 4-5Y)130=6T: length :96cm : Bust : 68cm : (Age 6Y)140=7-8T: length :102cm : Bust : 72cm : (Age 7-8Y)150=9-10T: length: 108cm : Bust : 76cm : (Age 9-10Y)160=11-12T: length: 114cm : Bust : 80cm : (Age 11-12Y)170=13-14T: length: 120cm : Bust : 84cm : (Age 13-14Y)Note: please refer to the bust and dress length to choose the right size.